Re: 1 Million dollars per coin by year 2020. I am not kidding.
If everyone who had 1 Bitcoin became a millionaire then the world would have far to many millionaires and that status would not be as prestigious as today. Some people have thousands of Bitcoin so do the math, its pretty much impossible.
Well there can even theoretically be only 21 million people with 1 Bitcoin and of course the real number will be much lower because many people have much more and all the lost coins etc.
And today there is approximately 10 million people today with net worth more than 1 Million excluding their apartment. So your argument basically makes no sense what so ever.
I did a quick search and apparently around ~12 million people in the world are millionaires. It just seems disproportionate to me to think that even 5 Million people with 1 Bitcoin could become millionaires. Obviously this discounts the possibility of Bitcoin becoming the new world currency. I should add that it is Friday and I have been drinking lots of beer so I might disagree with my posts tomorrow.
Bitcoin is like a vacuum sucking the money wasted in the economy from a corrupt and inefficient monetary system and transferring those funds to the early adopters. It's not a zero-sum game, the number of millionaires in the world goes up. Bitcoin creates new wealth by virtue of its value as a monetary infrastructure for society.